Actress Natalie Portman was stopped by New York police recently, and has blamed her newly-shaven head on raising suspicions with officers. The Golden Globe-winning beauty, 24, was driving through the midtown tunnel - which connects the New York City borough of Queens with Manhattan - when she was pulled over for questioning. Portman has recently shaved all her hair off for her next movie V For Vendetta. She tells Newsweek magazine, "I've never had that happen to me before. It's supposedly random... My registration was expired because I had been out of town, and it was my first day back....